Paving-brick



(No Model.)

F.'BUETTNER 8a F. ORLIKOWSKI. PAVING BRICK.

No. 426,430. Paten-'edApL-'ZL 1890..

. wuawbo/w A fie/INK. BUEN/VER WW1/mosca UNITED STATES PATENT OFFICE.

FRANK BUETTNER AND FRANK ORLIKOVSKI, OF CLEVELAND, OHIO.

PAVING-BRICK.

SPECIFICATION forming part of Letters Patent No. 426,430, dated April29, 1890.

Application filed January 16, 1890. Serial No. 337,040. (No model.)

To all whom, it may concern:

' Be it known that we, FRANK BUETTNEE and .FRANK OELrKowsKI, citizens ofthe United States, residing at Cleveland, in the county of Cuyahoga andStateof Ohio, have invented certain new and useful Improvements inPaving-Bricks; and we do hereby declare that the following' is a full,clear, and exact'description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in paving-bricks; and theinvention consists in a brick constructed substantially as shown anddescribed, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a brickconstructed accord ing to our invention. Figs. 2 and 3 are endelevations representing the opposite ends, respectively, of the brick.Fig. 4 shows a section of street as paved by our improved style ofbrick. Fig. 5 is a section of the pavement taken at right angles to theview shown in Fig. Il.

A represents the brick, which is of com-V mon pattern, with theexception hereinafter noted. In the rst place' it has formed upon itslower edge and extending laterally to one side a rib or projection d,which projection, rib, or ledge is, say, an eighth of an inch deep andthree-quarters of an inch high. Otherwise the two sides of the brick areiiat and uniform. At one end b the brick likewise is plain and of theusual construction, while at the pposite end c it has the formationclearly shown in Fig. l. In the first place it is made with a recess oroffset 2, running from the bottom about three-iifths of the way upward,where there is a shoulder 3. From this shoulder the end of the brickinclines slightly to a vertical line to the upper edge of the brick. Theline of the recess 2 is parallel to the opposite end of the brick, andthe line running from shoulder 3 to the top line 4 is at an inclinationto this line and to a straight vertical line, as appears in dotted linefi to 5, which is at right angles to the respective edge and parallel tothe end b. Thus it occurs, when the bricks are placed in position in thestreet running in lines transverse thereto and on a somewhat archedfoundatiomthat when the straight end Z) of one brickis placed againstthe notched and inclined end of the opposite brick both bricks will restupon the foundation and their edges at the top will be brought intoclose contact. In this way the bricks placed end to en d will come sosnugly together that the joint will be scarcely perceptible, .and thusno crevices, cracks, or the like will appear between them at the ends onthe surface of the street; but running in the opposite direction therewill be a space between the bricks equal to the width of the rib d attheir base, which, as before stated, is about an eighth of an inch indepth. These open spaces between the bricks will run transversely to thestreet. Then in order to complete the pavement a molten pitch or otherhardening, cementing, or binding substance will. be poured in thecrevices or spaces 6 between the bricks, and owing tothe space .7, (seenin Fig. 4,) created byA reason of the peculiar construction of one endof each brick, as described, the said pitch or other suitable bindingmaterial will run into the space between the ends of the bricks and llthe same to the p top, so that all the bricks will be thereby bound andiirmly united not only at their sides, but at their ends as well. Inthis way we are enabled to knit all the bricks together and form them,as it were, in al solid mass, making one brick help another insustaining the burden that comes upon it. This makes a much firmer andmore durable pavement than can be obtained where the binding occurs onlyupon the sides, as is the usual construction. VVe are furthermoreenabled to build a solid row of bricks, so far as the surf ace isconcerned, running from side to side of the pavement, each brick iittingclosely up against the end of the next one in succession and protectingitself, as well as the opposite brick, from chipping off and wearing atthis point, and making a symmetrical as well as a durable pavementthereby. This, however, does not prevent us from thoroughly cementingthe ends of the bricks together, which we are enabled to do by formingthe recess at the end, as described. The incline from 3 to 4 at end caffords room to accommodate the bricks to the arch or curvature of thestreet, and

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with good abutinents the bricks will form an arch from side to sideWhere there is, say, a twenty-one foot street With a siX-inoh crown.Having thus described our invention, What 5 We claim as new, and desireto secure by Leteters Patent, is

l. A paving-brick having a rib or projection along its lower edge at oneside and formed With a recess at one end terminating 1o in a shoulder inthe end of the brick, said recess extending from said shoulder to thebottom edge of the brick, substantially as described.

2. A paving-brick having a rib or projection` along its lower edge atone side and formed With a recess at one end terminating in a shoulder3, and an inclined portion at said end extending from said shouldertothe upper edge of the brick, and the opposite end of the brickstraight and at right angles to the edge thereof, substantially asdescribed.

Witness our hands to the foregoing specilication this Sth day ofJanuary, 1890.

FRANK BUETTNER. FRANK ORLIKOW'SKI. Witnesses:

H. T. FISHER, N. S. MOLANE.

